Write a C++ program to compute the area of a circle given its radius using PI = 3.14159.
Radius (double).
Print calculated area formatted to 2 decimal places.
Radius > 0
5.0
78.54
Computes circle area using PI * r * r formula.
#include <iostream>
#include <iomanip>
int main() {
double r;
if (std::cin >> r) {
// Write your code here
}
return 0;
}Embedded systems rely on efficient low-level programming to interact directly with hardware. In this course, you will learn how to write practical Embedded C programs used in real microcontroller-based systems. Rather than focusing only on theory, this course follows a practice-driven approach. Each lesson includes hands-on coding exercises that simulate real firmware development tasks used